<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>不规则表格展视</title>
</head>
<!--
    td属性：
        colspan:跨列
        rowspan:跨行
-->
<body>
    <table border="1" align="center" cellpadding="100px">
        <tr>
            <td colspan="2">1</td>
            <td rowspan="2">3</td>
        </tr>
        <tr>
            <td rowspan="2">4</td>
            <td>5</td>
        </tr>
        <tr>
            <td colspan="2">9</td>
        </tr>
    </table>
</body>
</html>